Advanced Control of a Wood Waste Boiler, 2002 Technology Summit Proceedings

J. Robinson, D. B. Smith, H. Försgren, T. Lindgren, H. Linström & S. Ling

The MACS© (Multivariable Advanced Control System) bark boiler advanced control application stabilizes boiler operations and optimizes combustion conditions to reduce production of CO and NOx while producing steam for a pulp/paper mill and steam turbine.

The controller manipulates primary, secondary, and tertiary air flows along with wood waste feed in order to satisfy targets for oxygen, carbon monoxide, steam header pressure, and bed temperature. The controller maximizes bark usage to ensure that a minimum amount of oil is used in the furnace. The controller also minimizes excessive air which has the advantages of a lower bed temperature, less NOx (oxides of nitrogen) production, and a higher thermal efficiency. Operation of the boiler is fully automated.

Author: Ling, S., Linström, H., Lindgren, T., Försgren, H., Robinson, J., Smith, D.B.
Advanced Control of a Wood Waste Boiler, 2002 Technology Sum
Advanced Control of a Wood Waste Boiler, 2002 Technology Summit Proceedings
35.00

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